6.3+5.6+8.4+x=

Solution for 6.3+5.6+8.4+x= equation:

Simplifying
6.3 + 5.6 + 8.4 + x = 0

Combine like terms: 6.3 + 5.6 = 11.9
11.9 + 8.4 + x = 0

Combine like terms: 11.9 + 8.4 = 20.3
20.3 + x = 0

Solving
20.3 + x = 0

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-20.3' to each side of the equation.
20.3 + -20.3 + x = 0 + -20.3

Combine like terms: 20.3 + -20.3 = 0.0
0.0 + x = 0 + -20.3
x = 0 + -20.3

Combine like terms: 0 + -20.3 = -20.3
x = -20.3

Simplifying
x = -20.3